Zddp Oil Additive in Us Low Internatinal Rates 5 Pack

Yes, I give it 5 stars because it works as advertised but YOU DON'T NEED IT. I have a 1965 pontiac GTO 389 4 spd. and a 1977 Ford F-250 2wd with a modified 460 auto. After hearing all of the hype about flat tappet cam failure with SM grade oil I thought I would give zzdp a try. Then I got curious and called a petroleum engineer at Shell. I was informed Rroltella-T has all the ZZDP any car engine needs, that is to say the level is equal to SJ grade oil. It is a diesel oil and the viscosity is 15w-40 yet that's OK for an older vehicle with a high performance flat tappet cam. Quaker State defy has 75% of the ZZDP of Shell's and is a 10w-30 synthetic blend its fine for any engine built after 1995. I also checked with a fleet technician at my employer (Century Link) and was told Motorcraft diesel oil has a disclaimer on the label not to use on vehicles with catalytic converters due to its high ZZDP content. The fleet runs all the diesel engines with that oil and Cummins diesels still use flat tappet cams. The company maintains the fleet meticulously so much so we had Pinto's and Cavaliers go for 20 years and up to 225,000 miles. I am very particular of my 2 classics often getting complemented on their appearance and performance so I would never jeopardize their maintenance. As we have heard so many times before skip the additives and do it right.

I run this in my 1926 model T engine. I was told by an old guy that it was one of the things that can kill an old engine is to nor have enough of the "bad" stuff that they were designed to run with back then (think too clean and too thin).He builds classic cars (VERY classic as in 30's Bugatti and Alpha's) ... I believe him.

No way to know what you are getting in this bottle, actually bought this brand on accident cause they are copying the original brand so much that its even the same colors and look of the bottles in the pictures!!!! Incredible they can get away with this, but it smells the same, looks the same, and I can only hope the stuff works the same as the original maker....

Use for my older hemi motor

Before I started using Bestline I was getting 460 to 475 miles per tank before the low gas light came on. Now I get 510 to 525 miles per tank before the light comes on.I started this review with a sentence from a review I did on Bestline oil additive because after trying Zddp Maxx on my last oil change my gas mileage dropped to the 460 to 475 miles per tank before the light comes on. I wanted to try the Zddp Maxx because it is cheaper to treat my oil with it than Bestline. I see that this product has worked for some buyers but it did nothing to increase gas mileage in my truck (2009 Dodge Ram 1500 with the 5.7 Hemi). I purchased enough to do 2 oil changes but the rest is going in the trash and I'm going back to Bestline.90% of my driving is the same every day and I used the same oil, oil filter and gas as I always do. I wanted this product to work but I have no doubt it did nothing to improve performance or gas mileage on my truck. In this case I did get what I paid for.

The product must be helping. I use it in all my flat tappet equipped older engines, now that government regulations have once again screwed up things for me. Great price for this item! Thanks-

any car engine with push-rod and lifter valves needs this product to save the cam and lifters. oils for the newer engines do not have the additives needed to protect your push-rod engines. this is the best place I found to order this product for price and delivery.

Don't see any difference. Hope there is some.